The Simpson CI-LV FS Fast-Setting Low-Viscosity Structural Injection Epoxy from Simpson Strong-Tie is a two-component, high-modulus, high-solids, moisture-tolerant epoxy engineered for pressure injection of concrete cracks and for increasing the bond between freshly placed repair mortars or concrete mixes and existing concrete when substrate temperatures are between 40 deg. Fahrenheit (4 deg. Celsius) and 90 deg. Fahrenheit (32 deg. Celsius). Dispensed through a static mixing nozzle using either a manual or pneumatic dispensing tool, this 32-oz. cartridge delivers a fast-setting, chemically bonding repair that seals cracks against moisture intrusion and protects embedded rebar from corrosion - making it a dependable choice for structural concrete restoration in a wide range of field conditions.

Key Features

• Meets ASTM C881 and AASHTO M235, Type I/II, Grade 1, Class B and Type I/IV and II/V, Grade 1, Class C - satisfies recognized industry standards for structural epoxy injection, giving engineers and contractors confidence in code-compliant repairs.
• Chemically bonds with concrete to provide a structural repair and seals cracks from moisture - restores the load-carrying capacity of damaged concrete while protecting embedded rebar from corrosion, not just filling the surface.
• Moisture-tolerant formula works on dry and damp surfaces - eliminates the need to wait for a fully dry substrate, reducing downtime and allowing repairs to proceed under real-world field conditions.
• Low surface tension formulated for maximum penetration under pressure - allows the material to effectively reach deep into narrow cracks, ensuring a thorough, continuous bond rather than a superficial seal.
• Suitable for pressure injection or gravity-feed applications - one product handles both vertical crack injection and horizontal gravity-feed scenarios, reducing the need to stock multiple repair products.
• Non-shrink and resistant to oils, salts, and mild chemicals - the cured repair maintains its volume and integrity when exposed to common environmental contaminants, extending the service life of the repair.
• Compatible with metered pressure-injection equipment and Simpson Strong-Tie ADT30S and ADT30P dispensing tools - integrates into existing injection setups and works with purpose-matched dispensing tools for consistent, controlled material delivery.
• Freeze-thaw resistant - the cured epoxy withstands repeated freeze-thaw cycles, making it appropriate for structures in climates where temperature fluctuations are a concern.
• Includes EMNO22 mixing nozzle - the cartridge ships with a matched static mixing nozzle so the two-component system is ready to dispense without sourcing additional accessories.

Why This Product

• True structural repair, not just crack filling - because CI-LV FS chemically bonds with the concrete substrate, it restores structural integrity and simultaneously seals against moisture, addressing two critical repair objectives with a single application.
• Exceptional crack penetration for fine- to medium-width repairs - the low-viscosity, low-surface-tension formula is specifically engineered to flow into cracks as narrow as 1/64 in. under pressure, reaching areas that thicker materials cannot access and ensuring a complete, void-free bond.
• Versatile enough for demanding field conditions - moisture tolerance, freeze-thaw resistance, and chemical resistance to oils and salts mean this epoxy performs reliably across a broad range of job-site environments without requiring ideal surface conditions.
• Fast-setting performance backed by recognized standards compliance - the fast-setting formulation shortens return-to-service time, and its dual compliance with ASTM C881 and AASHTO M235 provides the documentation contractors and inspectors need for structural and infrastructure projects.

Specifications

• MPN: CILVFS32
• Brand: Simpson Strong-Tie
• Capacity: 32 oz.
• Packaging Type: Cartridge
• Color: Amber
• Yield: 231 in.3/US gal. (0.001 m3/L)
• Substrate Temperature Range: 40 deg.F (4 deg.C) - 90 deg.F (32 deg.C)
• Applicable Standards: ASTM C881 & AASHTO M235, Type I/II, Grade 1, Class B; ASTM C881 & AASHTO M235, Type I/IV and II/V, Grade 1, Class C
• Compatible Dispensing Tools: Simpson Strong-Tie ADT30S and ADT30P
• Country of Origin: United States

Approved Applications

• Pressure-injection of cracks in structural concrete
• Gravity-feed of cracks in horizontal concrete
• As a low-viscosity epoxy (600 cP) for repair of fine- to medium-width cracks 1/64" - 1/4" (0.4 - 6 mm) in width
• For structural repairs
• To bond new concrete or repair mortars to existing concrete

What's Included

Each pack contains (1) CILVFS32 Low-Viscosity Structural Injection Epoxy, EMNO22 mixing nozzle.

Frequently Asked Questions

What types of surfaces can the CI-LV FS epoxy be applied to?

The CI-LV FS epoxy is moisture-tolerant and can be used on both dry and damp concrete surfaces, making it suitable for a wide range of field conditions without requiring a fully dry substrate before application.

What crack widths is this epoxy designed to repair?

CI-LV FS is formulated as a low-viscosity epoxy (600 cP) with low surface tension, making it effective for repairing fine- to medium-width cracks ranging from 1/64" to 1/4" (0.4 - 6 mm) in width. Its viscosity allows maximum penetration under pressure into narrow cracks.

What dispensing tools are compatible with the CILVFS32 cartridge?

The 32-oz. side-by-side cartridge is compatible with Simpson Strong-Tie ADT30S and ADT30P dispensing tools, which include both manual and pneumatic options, and is dispensed through a static mixing nozzle. The EMNO22 mixing nozzle is included with the cartridge.

What industry standards does this epoxy meet?

CI-LV FS meets the requirements of ASTM C881 & AASHTO M235, Type I/II, Grade 1, Class B as well as ASTM C881 & AASHTO M235, Type I/IV and II/V, Grade 1, Class C, ensuring it meets rigorous performance criteria for structural concrete repair applications.

Downloads and Resources

• Epoxy Crack Injection Guide
• CI-LV FS SDS Material Safety data Sheets